Optical module

Abstract

An optical module includes a light forming part and a protective member that has an emitting window transmitting light from the light forming part and is disposed to surround the light forming part. The light forming part 20 includes a base member, a semiconductor light-emitting element mounted on the base member, a lens mounted on the base member, and the first supporting member that is disposed between the base member and the lens and supports the lens with respect to the base member. The first supporting member has constriction, which has a smaller cross-sectional area than a region in which the first supporting member is in contact with the lens and a region in which the first supporting member is in contact with the base member in a cross section perpendicular to a thickness direction of the first supporting member.

What is claimed is: 
     
       1. An optical module comprising:
 a light forming part configured to form light; and 
 a protective member having an emitting window transmitting light from the light forming part and disposed to surround the light forming part, 
 wherein the light forming part includes:
 a base member; 
 a semiconductor light-emitting element mounted on the base member; 
 a lens mounted on the base member and configured to convert a spot size of light emitted from the semiconductor light-emitting element; and 
 a first supporting member disposed between the base member and the lens, configured to support the lens with respect to the base member, and comprising an ultraviolet curable resin, 
 
 the first supporting member has a constriction comprising a hardened solid core formed from the ultraviolet curable resin, and 
 the constriction has a smaller cross-sectional area than a region in which the first supporting member is in contact with the lens and a region in which the first supporting member is in contact with the base member in a cross section perpendicular to a thickness direction of the first supporting member. 
 
     
     
       2. The optical module according to  claim 1 , wherein the base member has a first holding part holding the first supporting member. 
     
     
       3. The optical module according to  claim 2 , wherein the first holding part is a protrusion protruding from the base member. 
     
     
       4. The optical module according to  claim 1 , wherein a thickness of the first supporting member is 30 μm or more and 70 μm or less. 
     
     
       5. The optical module according to  claim 1 , wherein the light forming part includes:
 a plurality of semiconductor light-emitting elements that are mounted on the base member; 
 a plurality of lenses that are mounted on the base member and are disposed to correspond to the plurality of semiconductor light-emitting elements; and 
 at least one filter that is mounted on the base member and multiplex light from the plurality of semiconductor light-emitting elements. 
 
     
     
       6. The optical module according to  claim 5 , further comprising at least one second supporting member disposed between the base member and the at least one filter, configured to support the at least one filter with respect to the base member, and comprising an ultraviolet curable resin,
 wherein the at least one second supporting member has a constriction, which has a smaller cross-sectional area than a region in which the at least one second supporting member is in contact with the at least one filter and a region in which the at least one second supporting member is in contact with the base member in a cross section perpendicular to a thickness direction of the at least one second supporting member. 
 
     
     
       7. The optical module according to  claim 6 , wherein the base member has at least one second holding part holding the at least one second supporting member. 
     
     
       8. The optical module according to  claim 7 , wherein the at least one second holding part is a protrusion protruding from the base member. 
     
     
       9. The optical module according to  claim 6 , wherein a thickness of the at least one second supporting member is 30 μm or more and 70 μm or less. 
     
     
       10. The optical module according to  claim 5 , wherein the plurality of semiconductor light-emitting elements include a semiconductor light-emitting element that emits red light, a semiconductor light-emitting element that emits green light, and a semiconductor light-emitting element that emits blue light. 
     
     
       11. The optical module according to  claim 1 , wherein the semiconductor light-emitting element is a laser diode. 
     
     
       12. The optical module according to  claim 5 , further comprising a plurality of first supporting members, each being disposed between the base member and the corresponding lens, configured to support the corresponding lens with respect to the base member, and comprising an ultraviolet curable resin. 
     
     
       13. The optical module according to  claim 11 , wherein the base member has a plurality of first holding parts, each holding the corresponding first supporting member. 
     
     
       14. The optical module according to  claim 6 , wherein the constriction of the at least one second supporting member has a hardened solid core formed from the ultraviolet curable resin.